snapd does not merge snap declarations. In this case, the gnome snaps have a snap declaration for their slots which says to allow any other snap to auto-connect to them. But then tagger now has a snap declaration for its plugs which says to auto-connect to various slots. However, this declaration now overrides the ones from the gnome snaps and so they fail to auto-connect. In this case we just need to duplicate the auto-connect declarations from the gnome snaps into tagger itself. @0xnishit @emitorino can you please take a look at this? Thanks.